AS1116(2009) Ver la hoja de datos (PDF) - austriamicrosystems AG

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AS1116
(Rev.:2009)

64 LED Driver with Detailed Error Detection

austriamicrosystems AG 

AS1116

Datasheet - Pinout

4 Pinout

Pin Assignments

Figure 2. Pin Assignments (Top View)

AS1116

24 23 22 21 20 19

DIG2 1

18 SEG E

DIG3 2

17 SEGC

GND 3

DIG4 4

AS1116

16 VDD

15 SEGG

DIG5 5

14 SEGB

N/C 6

13 SEGF

7 8 9 10 11 12

Pin Descriptions

Table 1. Pin Descriptions

Pin

Name

QSOP-24

SDI

1

DIG0:DIG7

GND

LD

N/C

2-5, 7-10

6

11

12

ISET

13

SCL

14

SEGA:SEG

G, SEGDP

VDD

15-18,

20-23

19

SDO

24

TQFN(4x4)-24

Description

22

1, 2, 4, 5, 7, 8,

23, 24

3

9

6

10

11

12-15,

17-20

16

Serial-Data Input. Data is loaded into the internal 16-bit shift register

on the rising edge of pin SCL.

Digit Drive Lines. Eight digit drive lines that sink current from the

display cathode.

Ground.

Load. Serial Data is loaded into the shift register while this pin is low.

The last 16 bits of serial data are latched on the rising edge of this pin.

Not Connected.

Set Segment Current. Connect to VDD or a reference voltage through

RSET to set the peak segment current (see Selecting RSET Resistor

Value and Using External Drivers on page 15).

Serial-Clock Input. 10MHz maximum rate. Data is shifted into the

internal shift register on the rising edge of this pin. Data is clocked out of

pin SDO on the rising edge of this pin.

Seven Segment and Decimal Point Drive Lines. 8 seven-segment

drives and decimal point drive that source current to the display.

Positive Supply Voltage. Connect to +2.7 to +5.5V supply.

Serial-Data Output. The data into pin SDI is valid at pin SDO 16 clock

21

cycles later. This pin is used to daisy-chain several devices and is never

high-impedance.

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Revision 1.04

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